An automotive exterior rearview mirror folding and unfolding device

Abstract

An external rearview mirror retracting and deploying device for an automobile, comprising an external rearview mirror body, a substrate, a movable part, a housing, and a main control unit; the substrate is an axially symmetric plate member and is arranged at the side window of the automobile; the external rearview mirror body is fixed on one side of the substrate facing the outside of the automobile; the housing is arranged inside the automobile; the movable part is arranged inside the housing and is connected to the substrate; the movable part includes a moving component, a rotating component, and a revolving component, the moving component drives the substrate to translate in the direction of the outside or inside of the automobile; the rotating component drives the substrate to rotate around an axis passing through the axis of symmetry of the substrate and perpendicular to the plane of the substrate; the revolving component drives the substrate to revolve around an axis passing through the intersection of the rotation axis of the rotating component and the axis of symmetry of the substrate and perpendicular to the axis of symmetry of the substrate; the main control unit is electrically connected to the movable part and controls its movement. Compared with the prior art, the external rearview mirror retracting and deploying device of the present invention can realize the retracting and deploying of the external rearview mirror inside the automobile, thereby realizing the protection of the external rearview mirror.

Description

Technical Field

[0001] The present invention relates to the field of automotive exterior rearview mirrors, and particularly to an automotive exterior rearview mirror retracting and deploying device. Background Art

[0002] With the improvement of living standards, the use of automobiles has become increasingly popular. To facilitate the driver's observation of the external situation during driving and improve driving safety, exterior rearview mirrors are generally provided beside the side windows of automobiles.

[0003] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of an automotive exterior rearview mirror in the deployed state in the prior art. The exterior rearview mirror 1 is installed outside the side window 2 of the automobile. In its deployed state, the lateral length of the automobile reaches about 2 meters. Moreover, affected by the shape design, the connection part between the exterior rearview mirror 1 and the side window 2 of the automobile is generally relatively fragile. In daily life, it often occurs that when the automobile is parked or passing through a narrow passage, the exterior rearview mirror 1 is damaged due to collision or other external forces, and falls off from the side window 2 of the automobile and suffers damage.

[0004] Although foldable exterior rearview mirrors have also appeared in the market, even after folding, the exterior rearview mirror is still set outside the automobile. Moreover, the main function of the exterior rearview mirror is to facilitate the driver to obtain the external situation during the driving process of the automobile. Therefore, there is generally no need to use it after the automobile is parked. Instead, being placed outside the automobile for a long time will inevitably cause the exterior rearview mirror to be damaged easily by wind, sun, collision, scratching, etc., and cannot well protect the exterior rearview mirror. In addition, with the development of technology, electronic devices such as cameras will be installed on the exterior rearview mirror as auxiliary devices. If these devices are placed outside the automobile together with the exterior rearview mirror, they may be stolen. Summary of the Invention

[0005] Based on this, the object of the present invention is to provide an automotive exterior rearview mirror device that can be retracted and deployed in the automobile. The present invention is achieved through the following technical solutions:

[0006] An external rearview mirror retracting and deploying device for an automobile, comprising an external rearview mirror body, a substrate, a movable part, a housing and a main control unit; the substrate is an axially symmetric plate member and is arranged at the side window of the automobile; the external rearview mirror body is fixed to one side of the substrate facing the outside of the automobile; the housing is arranged inside the automobile; the movable part is arranged inside the housing and is connected to the substrate; the movable part comprises a moving component, a rotating component and a revolving component, the moving component drives the substrate to translate in the direction of the outside or inside of the automobile; the rotating component drives the substrate to rotate around a straight line passing through the axis of symmetry of the substrate and perpendicular to the substrate; the revolving component drives the substrate to revolve around a straight line parallel to the substrate plane and perpendicular to the axis of symmetry of the substrate within the substrate, so as to realize the retracting and deploying of the external rearview mirror body at the side window of the automobile; the main control unit is electrically connected to the movable part and controls its movement.

[0007] Compared with the prior art, the external rearview mirror retracting and deploying device of the present invention is connected to the substrate equipped with the external rearview mirror through the movable part and drives the substrate to translate and rotate, so as to realize the retracting and deploying of the external rearview mirror inside the automobile. After the automobile stops, the external rearview mirror is received inside the vehicle body, thus realizing the protection of the external rearview mirror.

[0008] Further, the moving component comprises a movable rod and a first motor; the axis of the movable rod is perpendicular to the substrate plane and passes through the axis of symmetry of the substrate, the movable rod is connected to the substrate and drives it to translate in the direction of the outside or inside of the automobile along the axis of the movable rod; the first motor is fixedly connected to the movable rod and drives it to move along the axis direction of the movable rod, and the first motor is fixed inside the housing; the main control unit is electrically connected to the first motor and controls its movement.

[0009] Further, the rotating component comprises a rotating seat and a second motor; the rotating seat is fixedly connected to the movable rod; the second motor drives the rotating seat to rotate around the axis of the movable rod, and the second motor is fixed inside the housing; the main control unit is electrically connected to the second motor and controls its movement.

[0010] Further, the rotating assembly includes a central shaft, a first bevel gear, a second bevel gear, a steering shaft, a lever, and a third motor; the central shaft coincides with the axis of the movable rod and can rotate about its axis; the first bevel gear is fixed on the side of the central shaft close to the substrate and rotates coaxially with the central shaft; the second bevel gear is pivotally connected to the substrate through the steering shaft, and the second bevel gear is fixed to the steering shaft. The axis of the steering shaft passes through the intersection of the axis of the movable rod and the axis of symmetry of the substrate and is perpendicular to the axis of symmetry of the substrate; the first bevel gear meshes with the second bevel gear; the lever is fixed on the steering shaft, and a protrusion extending radially along the steering shaft is provided on the lever. The protrusion of the lever is inserted into the substrate to drive it to rotate about the axis of the steering shaft; the third motor is connected to the central shaft and drives the central shaft to rotate about its axis. The third motor is fixed on the side of the rotating seat facing the substrate; the main control unit is electrically connected to the third motor and controls its movement.

[0011] Further, the moving assembly further includes a moving member, a fixing ring, and a sliding group; a support member is provided inside the moving member, and the movable rod passes through the support member of the moving member and can rotate relative to the moving member about the axis of the movable rod; the fixing ring is fixedly connected to the movable rod and is arranged on both sides of the support member of the moving member to limit the movement of the movable rod along its axis; one side of the sliding group is fixed to the housing, and the other side is slidably connected to the moving member; the first motor is fixedly connected to the moving member and drives the moving member to move along the axis of the movable rod.

[0012] Further, the sliding group includes a guide rail and a guide rail sleeve; the guide rail is fixed on the moving member, the guide rail sleeve is fixed inside the housing, and the guide rail slides inside the guide rail sleeve.

[0013] Further, the rotating assembly further includes a sliding rod, a motor connection seat, and a bracket; the sliding rod is inserted into the rotating seat along the axis of the movable rod and can slide relative to the rotating seat; the motor connection seat is fixed on the sliding rod; the second motor is connected to the motor connection seat and drives it to rotate; the bracket is fixed inside the housing and supports the motor connection seat, and the motor connection seat can rotate relative to the bracket.

[0014] Further, the rotating assembly further includes a central shaft base, a connecting shaft, and a connecting shaft base; the central shaft is fixed on the central shaft base; the connecting shaft passes through the central shaft base along the axis of the movable rod and can slide relative to the central shaft base; the connecting shaft base is fixed to the connecting shaft; the third motor drives the connecting shaft base to rotate about the axis of the movable rod.

[0015] Further, both the second motor and the third motor are fixed within the housing; the motor connecting seat is sleeved outside the connecting shaft base, and the motor connecting seat and the connecting shaft base are relatively rotatable; the third motor is connected to the connecting shaft base and drives it to rotate; an external gear is provided on the motor connecting seat and meshes with the second motor for transmission.

[0016] Further, a waterproof component is further included, and the waterproof component is arranged at the joint between the substrate and the vehicle side window; the waterproof component includes a baffle, a torsion spring, and a spring bracket; the baffle covers the connecting part of the movable part and the substrate, and the spring bracket is arranged on the vehicle body; the torsion spring is sleeved on the spring bracket, and one end of its free arm is fixedly connected to the baffle. When the substrate presses against the baffle, the torsion spring undergoes elastic deformation.

[0017] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an unfolded view of an automotive exterior rearview mirror in the prior art;

[0019] Figure 2 It is a schematic diagram of the overall structure of the automotive exterior rearview mirror unfolding and folding device in the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the moving component in the present invention;

[0021] Figure 4 It is a schematic diagram of the installation of the movable rod and the fixed ring in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the rotating component in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the rotating assembly in the present invention;

[0024] Figure 7 It is a partial structure schematic diagram of the rotating assembly in the present invention;

[0025] Figure 8 It is a partial structure schematic diagram of an embodiment of the present invention;

[0026] Figure 9 It is a schematic diagram of the structure of the waterproof component in the present invention;

[0027] Figure 10 It is a partial structure schematic diagram of the waterproof component in the present invention;

[0028] Figure 11 It is a schematic diagram when the moving component in the present invention is working;

[0029] Figure 12 Schematic diagram of the rotating component during operation in the present invention;

[0030] Figure 13 Schematic diagram of the rotating assembly during operation in the present invention;

[0031] Figure 14 State diagram of the exterior rearview mirror of the present invention when it is received inside the vehicle. Detailed implementation manner

[0032] The exterior rearview mirror of the present invention drives the substrate equipped with the exterior rearview mirror to translate along the direction away from or close to the vehicle side window, rotate 180 degrees or multiples thereof around the axis perpendicular to the installation plane of the exterior rearview mirror, and rotate 180 degrees or multiples thereof around the axis within the installation plane of the exterior rearview mirror, so as to change the installation state of the exterior rearview mirror at the vehicle side window from three degrees of freedom, and realize the folding and unfolding of the exterior rearview mirror inside the vehicle.

[0033] Specifically, please refer to Figure 2 , the folding and unfolding device of the exterior rearview mirror of the present invention includes an exterior rearview mirror body 10, a substrate 20, a moving part 30 and a main control unit (not shown in the figure). The substrate 20 is a plate member with a symmetry axis, and its plate surface is parallel to the vehicle side window. A notch with the same shape as the plate surface of the base 20 is provided at the vehicle side window, and the substrate 20 is located in the notch of the vehicle side window. In one embodiment, the substrate 20 is an isosceles triangle plate member, and an isosceles triangle through hole corresponding thereto is provided on the vehicle side window. The exterior rearview mirror body 10 is fixed on the plate surface of the substrate 20 facing the outside of the vehicle side window, and the moving part 30 is installed on the inner side of the vehicle and fixed on the other side plate surface of the substrate 20. The main control unit is electrically connected to the moving part 30. Under the control of the main control unit, the moving part 30 drives the substrate 20 to translate along the direction away from or close to the vehicle side window, rotate 180 degrees or multiples thereof around the rotation axis perpendicular to the substrate 20 and passing through the symmetry axis of the substrate 20, and rotate 180 degrees or multiples thereof around the rotation axis passing through the intersection of the rotation axis and the symmetry axis of the substrate 20 and perpendicular to the symmetry axis of the substrate 20.

[0034] Among them, the moving part 30 includes a moving component 31, a rotating component 32, a rotating assembly 33 and a housing 34. The housing 34 is installed on the inner side of the vehicle, and the moving component 31, the rotating component 32 and the rotating assembly 33 are all fixed in the housing 34. Please refer to Figure 3, the moving component 31 includes a movable rod 311 and a first motor 312. The axis of the movable rod 311 is perpendicular to the board surface of the substrate 20 and passes through the axis of symmetry of the board surface of the substrate 20. The movable rod 311 is connected to the substrate 20. The first motor 312 drives the movable rod 311 to move along the axis direction of the movable rod 311. The main control unit is electrically connected to the first motor 312 and controls its switch. In one embodiment, the first motor 312 is a stepper motor. The first motor 312 is fixedly connected to the movable rod 311 and drives it to move in a direction perpendicular to the board surface of the substrate 20.

[0035] Further, the moving component 31 further includes a moving member 313, a movable rod support member 314, and a fixing ring 315. The movable rod support member 314 is fixed on the moving member 313 to support the movable rod 311. The fixing ring 315 is located on both sides of the movable rod support member 314 and is fixed to the movable rod 311 to limit the relative movement between the moving member 313 and the movable rod 311 in the axis direction of the movable rod 311. Please refer to Figure 3 and Figure 4 , in one embodiment, a through hole is provided in the moving member 313, and the movable rod 311 passes through the through hole of the moving member 313; the movable rod support member 314 is a bearing, and the fixing ring 315 is fixed on the movable rod 311. The movable rod support member 314 is located between the two fixing rings 315 to limit the movement of the movable rod 311 relative to the moving member 313 in the axis direction of the movable rod 311. The first motor 312 is a stepper motor and its output direction is parallel to the axis direction of the movable rod 311. The output end of the first motor 312 is fixed to the moving member 313, so as to push the moving member 313 to translate along the axis direction of the movable rod 311. In another embodiment, a protrusion is provided on the moving member 313, and the output end of the first motor 312 is threadedly connected to the protrusion of the moving member 313, so as to realize the fixed connection between the first motor 312 and the moving member 313.

[0036] Further, the moving component 31 further includes a sliding group 316. The sliding group 316 includes a guide rail 3161 and a guide rail sleeve 3162. The guide rail 3161 is fixed on the moving member 313 and the direction of the guide rail 3161 is parallel to the axis of the movable rod 311. The guide rail sleeve 3162 is fixed on the inner wall of the housing 34 by screws or the like. The guide rail 3161 is arranged in the guide rail sleeve 3162 and slides relative to the guide rail sleeve 3162. When the first motor 312 pushes the moving member 313 to move, the guide rail 3161 slides in the guide rail sleeve 3162, so as to ensure the stability of the translation of the moving member 313. In addition, if the guide rail 3161 is fixed on the housing 34 and the guide rail sleeve 3162 is fixed on the moving member 313, the smooth movement of the moving member 313 can also be achieved.

[0037] Further, the moving component 31 further includes a rearview mirror fixing seat 317. The rearview mirror fixing seat 317 is a cylinder and is axially connected to the movable rod 311 through a connecting shaft parallel to the board surface of the substrate 20. A through hole is provided at the symmetry axis of the board surface of the substrate 20. The rearview mirror fixing seat 317 is fixed in the through hole of the substrate 20. The notch of the rearview mirror fixing seat 317 is parallel to the movable rod 311. By means of the rearview mirror fixing seat 317, the contact area between the movable rod 311 and the substrate 20 is increased, so as to increase the driving force on the substrate 20.

[0038] Please refer to Figure 5 , the rotating component 32 includes a rotating seat 321 and a second motor 325. The rotating seat 321 is fixed at one end of the first movable rod 311 away from the substrate 20. The second motor 325 is fixed on the inner wall of the housing 34. The second motor 325 drives the rotating seat 321 to rotate around the axis of the movable rod 311. The main control unit is electrically connected to the second motor 325 and controls its switch.

[0039] Further, the rotating assembly 32 further includes a sliding rod 322, a motor connection seat 323 and a bracket 324. The rotating seat 321 is provided with a through hole whose axis is parallel to the axis of the movable rod 311. The sliding rod 322 is inserted into the through hole of the rotating seat 321, and the sliding rod 322 can slide relative to the rotating seat 321; preferably, the number of the sliding rods 322 is more than two, and they are evenly distributed around the axis of the movable rod 311; in one embodiment, the distance from the through hole axis of the rotating seat 321 to the axis of the movable rod 311 is greater than the outer diameter of the movable rod 311, and the sliding rod 322 slides outside the movable rod 311. The motor connection seat 323 is fixed to one end of the sliding rod 322 away from the rotating seat 321, and the second motor 326 drives the motor connection seat 323 to rotate. One side of the bracket 325 is fixed to the inner wall of the housing 34 by screws, etc., and the other side is connected to the motor connection seat 323 to support the motor connection seat 323. In one embodiment, a bearing is provided on the bracket 325, and the axis of the bearing of the bracket 325 coincides with the axis of the movable rod 311. The motor connection seat 323 is arranged in the bearing of the bracket 325 and can rotate relatively around the axis of the movable rod 311. In one embodiment, the second motor 325 is a servo, which directly drives the motor connection seat 323 to rotate around the axis of the movable rod 311. The sliding rod 322 fixed on the motor connection seat 323 drives the rotating seat 321 to rotate in the same direction, driving the movable rod 311 to rotate, and the base plate 20 rotates around the axis of the movable rod 311 accordingly. In addition, when the first motor 312 pushes the movable rod 311 to translate, the rotating seat 321 slides relative to the sliding rod 322 to achieve the extension and retraction of the rotating assembly 32 along the axis of the movable rod 311.

[0040] Please refer to Figure 6 and Figure 7, the rotating assembly 33 includes a lever 331, a first bevel gear 332, a second bevel gear 333, a central shaft 334, a steering shaft 335, and a third motor 339. The movable rod 311 has a hollow structure, the central shaft 334 passes through the movable rod 311, and the axis of the central shaft 334 coincides with the axis of the movable rod 311. The first bevel gear 332 is fixed to one end of the central shaft 334 close to the substrate 20, and its axis coincides with the central shaft 334. The axis of the steering shaft 335 passes through the intersection of the rotation axis of the rotation assembly 32 and the symmetry axis of the substrate 20 and is perpendicular to the symmetry axis of the substrate 20. The second bevel gear 333 is pivotally connected to the substrate 20 through the steering shaft 335 and meshes with the first bevel gear 332. The second bevel gear 333 is fixed to the steering shaft 335. The rotation of the second bevel gear 333 drives the rotation of the steering shaft 335. The lever 331 is fixed to the steering shaft 335. The lever 331 is provided with a protrusion extending radially along the steering shaft 335. The movable rod 311 is provided with an opening. The protrusion of the lever 331 passes through the opening of the movable rod 311 and inserts into the substrate 20 to drive the substrate 20 to rotate around the steering shaft 335. In one embodiment, the protrusion of the lever 331 inserts into the rearview mirror fixing seat 317. Both the rearview mirror fixing seat 317 and the substrate 20 are provided with openings parallel to the movable rod 311. When the lever 331 drives the rearview mirror fixing seat 317 to rotate around the steering shaft 335, the movable rod 311 passes through the openings of the rearview mirror fixing seat 317 and the substrate 20. The third motor 339 is fixed to the motor connection seat 323 and drives the central shaft 334 to rotate around the axis of the movable rod 311. The main control unit is electrically connected to the third motor 339 to control its movement.

[0041] Further, the rotating assembly 33 further includes a central axis base 336, a connecting shaft 337, and a connecting shaft base 338. One end of the central axis 334 away from the first bevel gear 332 is fixed on the central axis base 336. A through hole parallel to the axis of the movable rod 311 is provided on the central axis base 336. The connecting shaft 337 is inserted into the through hole of the central axis base 336 and can slide relative to the central axis base 336; preferably, the number of the connecting shafts 337 is more than 2, and the connecting shafts 337 are evenly distributed around the axis of the movable rod 311. The connecting shaft base 338 is fixed at one end of the connecting shaft 337 away from the substrate 20. The third motor 339 is fixedly connected to the connecting shaft base 338. When the first motor 312 drives the movable rod 311 to translate, the central axis base 336 slides relative to the connecting shaft 337 to realize the telescopic movement of the rotating assembly 33 along the axis direction of the movable rod 311. In one embodiment, the third motor 339 is a micro motor and drives the rotation of the connecting shaft base 338. In another embodiment, please refer to Figure 8 , the third motor 339 is a servo motor and is fixed in the housing 34. The connecting shaft base 338 is arranged in the motor connecting seat 323 through a bearing or the like, and the connecting shaft base 338 can rotate relative to the motor connecting seat 323 around the axis of the movable rod 311. The third motor 339 drives the connecting shaft base 338 to rotate around the axis of the movable rod 311. The second motor 325 is fixed in the housing 34, preferably, arranged beside the third motor 339. The motor connecting seat 323 is provided with an external gear, and the second motor 325 is provided with a gear meshing with the external gear of the motor connecting seat 323 and drives the motor connecting seat 323 to rotate through gear transmission. Compared with the micro motor, the servo motor has simple installation and wiring and large transmission force.

[0042] Further, please refer to Figure 9 and Figure 10, to prevent rainwater and the like from entering the vehicle interior along the connection part between the substrate 20 and the vehicle side window, which may affect the normal operation of the movable part 30, the vehicle exterior rearview mirror unfolding and folding device further includes a waterproof component 40. The waterproof component 40 includes a baffle 41, a torsion spring 42, and a spring bracket 43. The baffle covers the connection between the substrate 20 and the vehicle side window. Preferably, it covers the connection between the movable part 30 and the substrate 20. The spring bracket 43 is fixed on the vehicle body outside the vehicle side window, and a convex column is provided on the spring bracket 353. The torsion spring 352 is sleeved on the convex column of the spring bracket 353. One free force arm of the torsion spring 352 is fixed to the baffle 41. When the base 20 rotates, it presses open the baffle 41, and the torsion spring 352 deforms and generates a force to reset the baffle 41. In one embodiment, the spring bracket 353 is arranged beside the connection between the substrate 20 and the vehicle side window outside the vehicle side window, and the spring bracket 43 is arranged below the vehicle side window and the axis of its convex column is parallel to the symmetry axis of the substrate 20.

[0043] Based on the structure of the above vehicle exterior rearview mirror unfolding and folding device, the working process of unfolding and folding the exterior rearview mirror is specifically described as follows:

[0044] When folding the rearview mirror body 10, first, please refer to Figure 11 , start the first motor 312 through the main control unit to drive the moving part 313 to move towards the substrate 20 to the outside of the vehicle side window, thereby driving the movable rod 311 to move towards the outside of the vehicle side window. The substrate 20 fixed to one end of the movable rod 311 moves to the outside of the vehicle side window, the rotating seat 321 and the sliding rod 322 slide relative to each other, and the rotating assembly 32 extends. At the same time, the baffle 41 flips towards the outside of the vehicle.

[0045] Next, please refer to Figure 12 , start the second motor 325 through the main control unit to drive the motor connection seat 323 to rotate. The sliding rod 322 and the rotating seat 321 fixed on the motor connection seat 323 rotate around the axis of the movable rod 311, thereby driving the substrate 20 to rotate 180 degrees, and then the main control unit turns off the second motor 325. While the second motor 325 is rotating, since the third motor 339 is fixed on the motor connection seat 323 and rotates therewith, to ensure that the shift lever 331 does not rotate around the steering shaft 335, the main control unit controls the third motor 339 to rotate in the opposite direction to the second motor 325 and at the same rotation speed, so that the first bevel gear 332 and the second bevel gear 333 remain relatively stationary. At this time, the baffle 41 rotates to one side around the convex column of the spring bracket 353, and the torsion spring 42 undergoes elastic deformation.

[0046] Next, please refer to Figure 13 , the main control unit controls the rotation of the third motor 339, the connecting shaft base 338 rotates, and the fixed connecting shaft 337 rotates accordingly, driving the central shaft base 336 to rotate. The central shaft 334 drives the first bevel gear 332 to rotate in the same direction, which is transmitted to the meshing second bevel gear 333, and the transmission direction changes. The second bevel gear 333 drives the steering shaft 335 to rotate, so that the lever 331 mounted on the steering shaft 335 rotates. The lever 331 drives the substrate 20 to rotate 180 degrees around the axis of the steering shaft 335 towards the car window, and then the main control unit turns off the third motor 339. The outer rearview mirror body 10 faces the inside of the car.

[0047] Next, please refer to Figure 14 , the main control unit starts the first motor 312 again, driving the moving part 313 to move away from the substrate 20, that is, moving towards the inside of the car side window, thus driving the movable rod 311 to move towards the inside of the car side window. The substrate 20 fixed to one end of the movable rod 311 moves into the through hole of the car side window, and the substrate 20 is reset. At the same time, since the substrate 20 no longer presses against the baffle 41, under the reset action of the torsion spring 42, the baffle 41 also closes again onto the car side window.

[0048] In addition, the process of unfolding the rearview mirror body 10 is opposite to the above process and will not be repeated here.

[0049] Compared with the prior art, the retractable and deployable device for an automotive exterior rearview mirror of the present invention connects the movable part to the substrate equipped with the exterior rearview mirror and drives the substrate to translate and rotate, thereby realizing the retraction and deployment of the exterior rearview mirror inside the car. After the car stops, the exterior rearview mirror is retracted into the vehicle body, thus protecting the exterior rearview mirror. Moreover, after the automotive exterior rearview mirror is retracted into the vehicle body, it can reduce the lateral length of the car, facilitating the car to pass through narrow spaces. In addition, a waterproof component is provided to prevent moisture from entering the vehicle body and affecting the normal operation of each component.

[0050] The above embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An external rearview mirror folding and unfolding device for an automobile, characterized in that, It includes an outside rearview mirror body, a substrate, a movable part, a housing, and a main control unit; the substrate is a plate member with a symmetry axis and is arranged at the side window of the vehicle in the unfolded state and the folded state of the outside rearview mirror body, its plate surface is parallel to the side window of the vehicle, there is a notch with the same shape as the plate surface of the substrate at the side window of the vehicle, and the substrate is located in the notch of the side window of the vehicle; the housing is arranged inside the vehicle; the movable part is arranged inside the housing and is connected to the substrate; the movable part includes a moving component, a rotating component, and a revolving component, the moving component drives the substrate to translate in a direction perpendicular to its plate surface towards the outside or inside of the vehicle; the rotating component drives the substrate to rotate around an axis passing through the symmetry axis of the substrate and perpendicular to the plate surface of the substrate; the revolving component drives the substrate to revolve around an axis passing through the intersection of the rotation axis of the rotating component and the symmetry axis of the substrate and perpendicular to the symmetry axis of the substrate, so as to realize the unfolding and folding of the outside rearview mirror body at the side window of the vehicle; the main control unit is electrically connected to the movable part and controls its movement; In the unfolded state, the outside rearview mirror body is fixed on the plate surface of the substrate facing the outside of the vehicle; in the folded state, the plate surface of the substrate where the outside rearview mirror body is located faces the inside of the vehicle and leans against the movable part.

2. The vehicle exterior rearview mirror folding and unfolding device according to claim 1, wherein, The moving component includes a movable rod and a first motor; the axis of the movable rod is perpendicular to the plate surface of the substrate and passes through the symmetry axis of the substrate, the movable rod is connected to the substrate and drives it to translate towards the outside or inside of the vehicle along the axis of the movable rod; the first motor is fixedly connected to the movable rod and drives it to move along the axis direction of the movable rod, and the first motor is fixed inside the housing; the main control unit is electrically connected to the first motor and controls its movement.

3. The automotive exterior rearview mirror deployment device according to claim 2, characterized in that, The rotating component includes a rotating seat and a second motor; the rotating seat is fixedly connected to the movable rod; the second motor drives the rotating seat to rotate around the axis of the movable rod, and the second motor is fixed inside the housing; the main control unit is electrically connected to the second motor and controls its movement.

4. The automotive exterior rearview mirror retracting and deploying device according to claim 3, wherein, The revolving component includes a central axis, a first bevel gear, a second bevel gear, a steering axis, a lever, and a third motor; the central axis coincides with the axis of the movable rod and can rotate around its axis; the first bevel gear is fixed on the side of the central axis close to the substrate and rotates coaxially with the central axis; the second bevel gear is axially connected to the substrate through the steering axis, and the second bevel gear is fixed to the steering axis, and the axis of the steering axis passes through the intersection of the axis of the movable rod and the symmetry axis of the substrate and is perpendicular to the symmetry axis of the substrate; the first bevel gear meshes with the second bevel gear; the lever is fixed on the steering axis, and there is a protrusion extending radially along the steering axis on the lever, and the protrusion of the lever is inserted into the substrate to drive it to rotate around the axis of the steering axis; the third motor is connected to the central axis and drives the central axis to rotate around its axis, and the third motor is fixed on the side of the rotating seat facing the substrate; the main control unit is electrically connected to the third motor and controls its movement.

5. The automotive exterior rearview mirror deployment device according to claim 4, characterized in that The moving component further includes a moving member, a fixed ring, and a sliding group; a support member is provided inside the moving member, the movable rod passes through the support member of the moving member and can rotate relative to the moving member around the axis of the movable rod; the fixed ring is fixedly connected to the movable rod and is arranged on both sides of the support member of the moving member to limit the movement of the movable rod along its axis; one side of the sliding group is fixedly connected to the housing, and the other side is slidably connected to the moving member; the first motor is fixedly connected to the moving member and drives the moving member to move along the axis of the movable rod.

6. The vehicle exterior rearview mirror retracting and deploying device according to claim 5, characterized in that, The sliding group includes a guide rail and a guide rail sleeve; the guide rail is fixed on the moving member, the guide rail sleeve is fixed inside the housing, and the guide rail slides inside the guide rail sleeve.

7. The automotive exterior rearview mirror retracting and deploying device according to claim 5, characterized in that, The rotating component further includes a sliding rod, a motor connecting seat, and a bracket; the sliding rod is inserted into the rotating seat along the axis of the movable rod and can slide relative to the rotating seat; the motor connecting seat is fixed on the sliding rod; the second motor is connected to the motor connecting seat and drives it to rotate; The bracket is fixed inside the housing and supports the motor connecting seat, and the motor connecting seat can rotate relative to the bracket.

8. The vehicle exterior rearview mirror folding and unfolding device according to claim 7, wherein, The rotating assembly further includes a central axis base, a connecting shaft, and a connecting shaft base; the central axis is fixed on the central axis base; the connecting shaft passes through the central axis base along the axis of the movable rod and can slide relative to the central axis base; the connecting shaft base is fixedly connected to the connecting shaft; the third motor drives the connecting shaft base to rotate around the axis of the movable rod.

9. The vehicle outside rearview mirror unfolding and folding device according to claim 8, characterized in that The second motor and the third motor are both fixed inside the housing; the motor connecting seat is sleeved outside the connecting shaft base and the motor connecting seat and the connecting shaft base can rotate relative to each other; the third motor is connected to the connecting shaft base and drives it to rotate; an external gear is provided on the motor connecting seat and meshes with the second motor for transmission.

10. The vehicle exterior rearview mirror deployment device according to claim 9, characterized in that, It further includes a waterproof component, and the waterproof component is arranged at the joint of the substrate and the vehicle side window; the waterproof component includes a baffle, a torsion spring, and a spring bracket; the baffle covers the connecting part of the movable part and the substrate, the spring bracket is arranged on the vehicle body; the torsion spring is sleeved on the spring bracket, and one end of its free arm is fixedly connected to the baffle, and when the substrate presses against the baffle, the torsion spring undergoes elastic deformation.

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